mirror of
https://github.com/pimoroni/grow-python
synced 2025-10-25 15:19:23 +00:00
160 lines
4.4 KiB
Python
160 lines
4.4 KiB
Python
import time
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import ST7735
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import random
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import math
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from PIL import Image, ImageDraw, ImageFont
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from fonts.ttf import RobotoMedium as UserFont
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import RPi.GPIO as GPIO
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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BUTTONS = [5, 6, 16, 24]
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LABELS = ['A', 'B', 'X', 'Y']
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channel_count = 3
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channel_selected = 0
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GPIO.setup(BUTTONS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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font = ImageFont.truetype(UserFont, 14)
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def handle_button(pin):
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global channel_selected
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index = BUTTONS.index(pin)
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label = LABELS[index]
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if label == 'A':
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channel_selected += 1
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channel_selected %= channel_count
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print("Button {} pressed! Channel: {}".format(label, channel_selected))
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for pin in BUTTONS:
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GPIO.add_event_detect(pin, GPIO.FALLING, handle_button, bouncetime=150)
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display = ST7735.ST7735(
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port=0,
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cs=1,
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dc=9,
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backlight=12,
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rotation=270,
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spi_speed_hz=10000000
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)
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ramp = [
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(192, 225, 254), # Blue
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(196, 255, 209), # Green
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(255, 243, 192), # Yellow
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(254, 192, 192) # Red
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]
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ramp_sat = [
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(32, 137, 251), # Blue
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(100, 255, 124), # Green
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(254, 219, 82), # Yellow
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(254, 82, 82), # Red
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]
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def indicator_color(value, r=None):
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if r is None:
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r = ramp
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value *= len(r) - 1
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a = int(math.floor(value))
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b = a + 1
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blend = float(value - a)
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r, g, b = [int(((r[b][i] - r[a][i]) * blend) + r[a][i]) for i in range(3)]
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return (r, g, b)
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display.begin()
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WIDTH, HEIGHT = display.width, display.height
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# Only the ALPHA channel is used from these images
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icon_drop = Image.open("icons/icon-drop.png")
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icon_nodrop = Image.open("icons/icon-nodrop.png")
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icon_rightarrow = Image.open("icons/icon-rightarrow.png")
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icon_snooze = Image.open("icons/icon-snooze.png")
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plants = []
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for x in range(1, 15):
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plants.append(Image.open("icons/flat-{}.png".format(x)))
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CHANNEL_W = 40
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CHANNEL_M = 2
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print(WIDTH, HEIGHT)
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image = Image.new("RGBA", (WIDTH, HEIGHT), color=(255, 255, 255))
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draw = ImageDraw.Draw(image)
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draw.rectangle((0, 0, 19, 19), (32, 138, 251))
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draw.rectangle((0, HEIGHT - 19, 19, HEIGHT), (255, 255, 255))
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draw.rectangle((WIDTH - 20, 0, WIDTH, 19), (75, 166, 252))
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draw.rectangle((WIDTH - 20, HEIGHT - 19, WIDTH, HEIGHT), (254, 218, 80))
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def icon(image, icon, position, color):
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col = Image.new("RGBA", (20, 20), color=color)
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image.paste(col, position, mask=icon)
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icon(image, icon_rightarrow, (0, 0), (255, 255, 255))
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icon(image, icon_snooze, (0, HEIGHT - 20), (129, 129, 129))
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icon(image, icon_drop, (WIDTH - 20, 0), (255, 255, 255))
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icon(image, icon_nodrop, (WIDTH - 20, HEIGHT - 20), (255, 255, 255))
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def plant(image, plant, channel):
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x = [18, 58, 98][channel]
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y = HEIGHT - plant.height
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image.paste(plant, (x, y), mask=plant)
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picked = random.sample(plants, 3)
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# image.save("test.png")
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while True:
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t = time.time() / 10.0
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c1 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
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c2 = (math.sin(t * math.pi) + 1.0) / 2.0
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c3 = (math.sin(math.pi + t * math.pi) + 1.0) / 2.0
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draw.rectangle((21, 0, 138, HEIGHT), (255, 255, 255)) # Erase channel area
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# Draw background bars
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draw.rectangle((21, int(c1 * HEIGHT), 58, HEIGHT), indicator_color(c1))
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draw.rectangle((61, int(c2 * HEIGHT), 98, HEIGHT), indicator_color(c2))
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draw.rectangle((101, int(c3 * HEIGHT), 138, HEIGHT), indicator_color(c3))
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# Draw plant images
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for p in range(3):
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plant(image, picked[p], p)
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# Channel selection icons
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draw.rectangle((33, 2, 48, 17), indicator_color(c1, ramp_sat))
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draw.rectangle((33 + 40, 2, 48 + 40, 17), indicator_color(c2, ramp_sat))
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draw.rectangle((33 + 80, 2, 48 + 80, 17), indicator_color(c3, ramp_sat))
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selected_x = 21 + (40 * channel_selected) + 10
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draw.rectangle((selected_x, 0, selected_x + 19, 20), indicator_color([c1, c2, c3][channel_selected], ramp_sat))
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draw.polygon([
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(selected_x, 20),
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(selected_x + 9, 25),
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(selected_x + 19, 20)
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],
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fill=indicator_color([c1, c2, c3][channel_selected], ramp_sat))
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draw.text((33 + 3, 2), "1", font=font, fill=(255, 255, 255))
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draw.text((33 + 40 + 4, 2), "2", font=font, fill=(255, 255, 255))
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draw.text((33 + 80 + 4, 2), "3", font=font, fill=(255, 255, 255))
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# Erase snooze icon
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draw.rectangle((0, HEIGHT - 19, 19, HEIGHT), (255, 255, 255))
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r = int(((math.sin(time.time() * 3 * math.pi) + 1.0) / 2.0) * 255)
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icon(image, icon_snooze, (0, HEIGHT - 20), (r, 129, 129))
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display.display(image.convert("RGB"))
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time.sleep(1.0 / 30)
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